Revit

Structural Columns in Revit: At Grids, Level Offsets and Steel Sections

Place structural columns in Revit 2027 step by step: pick the section, set base and top levels, drop a whole bay with At Grids, stack floors, slant a column.

  • TS. Nguyễn Mạnh Tuấn
  • 15 min read
The concrete frame of a four-storey house modelled in Revit 2027, with columns running from the piles up to the roof Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

On a CAD drawing a column is two parallel lines and a mark. In a model it is a member with a section, a material, a start level and an end level, and it carries both quantities and reinforcement.

Structural columns in Revit are placed with the Structural Column command on the Structure tab, Structure panel, shortcut CL. This article walks a full frame in Revit 2027: choosing a family and a section, setting the base and top levels, dropping a whole bay at grid intersections, stacking columns onto the floors above, then slanting one. If you want the whole modelling and documentation workflow, the Institute runs a Revit Structure course.

Structural columns in Revit versus architectural columns

This is the first thing beginners get wrong. On the Architecture tab the Column button has a drop-down with exactly two entries.

1 Structural Column, the load-bearing member. 2 Column: Architectural, the cladding member Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

The two are not two names for the same thing. Autodesk puts it plainly on About Placing Structural Columns: "Structural elements such as beams, braces, and isolated foundations join to structural columns; they do not join to architectural columns".

BehaviourStructural columnArchitectural column
Beams, braces, isolated foundations join to ityesno
Has an analytical model for data exchangeyesno
Takes reinforcementyesno
Merges into a wall in plannoyes
Can be placed in bulk at grid intersectionsyesno

Engineers use the first one. Cladding columns, wall piers and decorative columns belong to the architect and use the second; that side is covered in the article on columns in Revit.

What to prepare before you place a column

Three things. A grid, because columns snap to intersections and stay tied to them afterwards; the article on grids and levels in Revit covers that. All storey levels, because a column runs from one level to another rather than to a free number. And a structural plan, a Structural Plan view whose Discipline is set to Structural.

The model used here is a four-storey reinforced concrete house, grids 1 to 4 and A, B, levels 1F to RF. If you are new to the discipline, read what Revit Structure is first.

How to place columns in Revit: the command and the section

Step 1 — Open the structural plan of the floor

In the Project Browser open Structural Plans and double-click the floor, then zoom to the bay you are about to build. The command also runs in a 3D view, but snapping is far easier in plan.

Step 2 — Start the Structural Column command

Go to Structure › Structure › Column, or type CL. On the Structure tab the button has no drop-down: one click takes you straight into the structural column command.

1 the Column button on the Structure tab. 2 the tooltip names the command Structural Column with shortcut CL Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

Step 3 — Read the six panels of the contextual tab

The ribbon switches to Modify | Place Structural Column. Six panels decide almost everything, so read them once before you click.

1 Mode. 2 Rotate. 3 Placement. 4 Levels. 5 Multiple. 6 Tag Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics
No.PanelWhat it does
1ModeLoad Family brings in another column family from an .rfa file
2RotateRotate After Placement lets you spin the column right after the click
3PlacementChoose Vertical Column or Slanted Column
4LevelsThe Height – Depth pair, the target level and the unconnected height box
5MultipleAt Grids places at intersections, At Columns follows architectural columns
6TagTag on Placement labels the column as it lands

Release 2027 has no Options Bar at all. Everything older tutorials tell you to set "on the Options Bar" now lives in these six panels.

Step 4 — Pick the family and the type

Open the Type Selector at the top of the Properties palette. The Search box above the list filters by name, which is worth using once a project carries several families. Most Recently Used Types below keeps the ones you just used.

1 the Search box filters the list. 2 the column family of the project and its existing sections Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

Step 5 — Duplicate a type to get the section you need

The shipped library has no sections matching local documentation. The fix is not to hunt for another family but to duplicate a type and change two numbers. Click Edit Type in Properties, click Duplicate, name the type after the section, then edit the two dimensions.

1 Duplicate creates the new type. 2 Structural Material. 3 Section Shape. 4 the two section dimensions Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

Naming a type after its section is a good habit: the name tells you the size without opening a dialog. The model here uses names such as 220x300, 220x400 and 220x220.

Step 6 — Set the material and read Section Shape

In the same dialog, Materials and Finishes holds Structural Material, which decides the row a column lands on in a material takeoff, so do not leave it on By Category. Just below, the Structural group holds Section Shape: leaving it Not Defined is correct for a rectangular concrete column, and it only carries a real value for rolled steel families.

Step 7 — Choose Depth or Height, then the target level

The Levels panel is where beginners lose most time. Depth runs the column down from the level of the current view to the level chosen beside it. Height runs it up. Choosing Unconnected enables the number box below, and the column is exactly that tall.

Setting this before you click saves editing dozens of columns later.

Placing a whole bay with Revit At Grids

Step 8 — Click a grid intersection

Hover over the intersection of two grids; Revit shows the snap marker and two temporary dimensions to the nearest grids. Click once. To turn the column before placing it, press the space bar; each press rotates by 90 degrees.

Step 9 — Place a whole bay with At Grids

Click At Grids on the Multiple panel. The contextual tab renames itself to Modify | Place Structural Column > At Grid Intersection, and the status bar asks you to select grid lines. Drag a crossing selection from right to left so both directions are caught, then click Finish.

1 the Finish and Cancel buttons on the Multiple panel. 2 a selected grid in one direction. 3 a selected grid in the other Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

Revit drops a column at every intersection of the selected grids. Two grids each way give four columns; all six grids of a small frame give the whole set in one click.

Step 10 — Follow architectural columns with At Columns

When the architectural model is linked in and already carries architectural columns, At Columns places structural columns at the selected ones. The two models then line up without checking column by column.

Base and top levels, and stacking columns to the floors above

Step 11 — Read and correct the base and top

Select a placed column and the Properties palette tells you where it starts and stops.

1 Base Level and Base Offset. 2 Top Level and Top Offset. 3 Column Location Mark naming the grid intersection Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

The column shown has Base Level 2F with Base Offset −350 and Top Level 3F with Top Offset −50. A negative base offset means the foot of the column sits 350 mm below level 2F, that is, below the soffit of the beams of the floor beneath, exactly as it is cast. Scroll down and System Length reads 3900, the storey height. Column Location Mark names the intersection, and a ticked Moves With Grids means the column follows the grid when you move it.

A structural section: one column segment per storey, marked by floor and by section Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

A section makes it obvious: a column is not one bar from footing to roof but a stack of segments meeting at each level, and the marks are numbered by floor.

Step 12 — Stack floors with Paste Aligned to Selected Levels

Once one floor is right, do not model the next one again. Select the columns, press Ctrl + C, then open the arrow under Paste on the Clipboard panel.

1 the Aligned to Selected Levels entry in the Paste menu Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

Choose Aligned to Selected Levels and the Select Levels dialog lists every level in the project. Pick one or several, click OK, and the columns land at the same plan positions on those floors.

1 the list of levels in the Select Levels dialog, multi-select with Ctrl Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

Check the Top Offset on the topmost floor afterwards, because a roof storey rarely has the same height as the others.

Slanted columns in Revit and checking the finished frame

Step 13 — Draw a slanted column

Click Slanted Column on the Placement panel. The ribbon changes noticeably, and that is the part worth noticing.

1 Rotate After Placement greys out. 2 Slanted Column is active. 3 At Columns greys out. 4 the Positioning panel with 3D Snapping Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

The Levels panel disappears, because a slanted column takes its levels from the two clicks rather than from a preset box. In exchange you get a Positioning panel with 3D Snapping, which lets you snap to members at other levels. The status bar asks for the start point, then the second point.

Autodesk's page About Placing Slanted Structural Columns lists three things to remember. The top is always higher than the base and cannot later be set below it. Slanted columns do not appear in graphical column schedules, so they lose the Column Location Mark parameter. Copy/Monitor does not apply to them either.

Step 14 — Check the frame by isolating the category

Select any column and type IC. Revit hides every other category, leaves Structural Columns on screen and frames the view in cyan with a Temporary Hide/Isolate label.

The whole column set after isolating the Structural Columns category, with the joint at each level clearly visible Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

At this size you can finally read what matters: which columns run through several storeys, which stop after one, and where a gap is left. Turn the temporary mode off with the light-bulb button on the view control bar, as the article on hiding and isolating objects in Revit describes.

Structural column Revit family: extra sections and steel

Round columns, rolled steel columns and built-up columns are all Structural Columns; only the family differs. The two load buttons sit under Insert › Load from Library: Load Family opens an .rfa file on disk, while Load Autodesk Family pulls straight from Autodesk online content.

1 the Structural Columns group in the Browse tree. 2 the Steel branch holding two sets of AISC sections Photo: Screenshot of Revit 2027, Autodesk online content

The online Structural Columns group holds 67 families sorted by material: Concrete, Light Gauge Steel, Precast Concrete, Steel and Wood. The Steel branch covers I sections, C sections, angles, round pipes and square tubes. Pick a family, click Load, and Revit opens Specify Types so you bring in only the sections you need instead of the whole family.

1 the structural material is steel. 2 Section Shape carries a real value. 3 the Structural Analysis group. 4 the steel column just placed, its tube walls visible in plan Photo: Screenshot of Revit 2027, sample model of the Institute of Construction Informatics

Place one tube column and the difference from concrete shows at once. Section Shape reads Rectangular HSS instead of sitting empty. Structural Material points at a steel material, so schedules separate cleanly, and Properties grows a Top Connection – Base Connection pair. Type Properties gains a whole Structural Analysis group carrying section area, weight per metre and moment of inertia about both axes, none of which a rectangular concrete column has. Joints between two steel members are made on the Steel tab, with Connection, Plate, Bolts and Welds; that tab does not place columns.

Sections from Autodesk content follow the American AISC series, which Revit reports in centimetres. Searching the web for a structural column revit family mostly returns American and European rolled sections, so local documentation usually still needs a family built in house.

One more thing to do after placement. A column does not climb to a sloped roof by itself. To make the top follow a roof, select it, click Attach Top/Base on the Modify | Structural Columns tab and pick the roof. Skip this and the column cuts through the roof, a mistake that only shows up in section.

When the column will not behave

SymptomCauseFix
The column is nowhere to be seen in planIt falls outside the view range, or the view discipline is not StructuralAdjust View Range, set Discipline to Structural
The Column button is greyed outYou are on a sheet, a legend or a drafting viewOpen a plan or a 3D view
The column grows the wrong wayDepth is active where Height was neededSwitch it on the Levels panel before clicking
At Grids finishes but nothing appearsOnly grids in one direction were selected, so there is no intersectionAdd grids in the other direction, then Finish
Moving a grid leaves the column behindMoves With Grids has been untickedTick it again in Properties
A slanted column has no Column Location MarkRevit drops the graphical schedule parameters while a column is slantedNot fixable; make the column vertical again
Deleting a column reports invalid dimension referencesA dimension is tied to the columnDelete the dimension first, or use Remove References in the error box

Five things you often hear that are wrong

What you often hearWhat release 2027 actually does
Height and Depth are set on the Options Bar2027 has no Options Bar; the Height – Depth pair sits on the Levels panel
Every Column button offers the two column typesOn the Structure tab it goes straight to a structural column; the two-item menu is on the Architecture tab
Architectural and structural columns differ only in nameBeams, braces and isolated foundations join structural columns, not architectural ones
A slanted column keeps every parameterIt loses Column Location Mark, and Copy/Monitor does not apply
A column stretches up to the roof on its ownIt stops at the level you set; use Attach Top/Base to follow a sloped roof

In short, structural columns in revit follow a short loop: pick the type, set the section, set base and top, place along the grid, then paste onto the floors above. Once the columns stand, beams are next, and that is the article on drawing beams in Revit.

Frequently asked questions

Should I use a structural or an architectural column?

Engineers use structural columns, because only those join beams, braces and footings and only those take reinforcement. Cladding and decorative columns belong to the architectural model.

What is the fastest way to place columns in Revit across a floor?

At Grids. Start the Column command, click At Grids, drag a crossing selection over the grids in both directions and click Finish.

What does a negative Base Offset mean?

The foot of the column sits that far below the level you chose. In a frame it is normally used to take the column down past the soffit of the beams below.

Which views accept a slanted column?

Plans, elevations, sections and 3D views. In plan the two clicks take their levels from the command settings; switch on 3D Snapping to catch members at another level.

How do I make a column follow a sloped roof?

Select it, click Attach Top/Base on the Modify | Structural Columns tab and pick the roof. A column never attaches to a roof, floor or ceiling by itself.

About the author

TS. Nguyễn Mạnh Tuấn — BIM lecturer at the Institute of Construction Informatics – Hanoi University of Civil Engineering