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Slab Rebar 2.0 — Settings and Preview — Practical guide

Recorded in Revit 2027.3 with the English interface. Number 1 identifies the controls or result discussed immediately above the image. Click an image to open its full resolution.

Verification scope

Version substitution: the installed ribbon exposes Slab Rebar 2.0, not the classic SlabRebarCmd in the usage ranking. This is a settings/preview guide. Create Rebar fails because the installed RebarApiShim.CreateFromCurves method is missing. No generated slab reinforcement is verified. The practice RVT is an input model with a 300 mm native floor at Level 1 and inherited fixture columns. Multi-panel merging and openings are not runtime verified.

Settings reference · Practice RVT · All five guides

Video — English (4:06)​

English transcript · English subtitles SRT · Chapter titles

Google Gemini Charon narration, directed in neutral American English. Chapter cuts, brief zooms and highlights follow the measured speech. Enable English subtitles in the video player.

1. Installed version and scope (0:00)​

The usage ranking names the older Slab Rebar command. This installation exposes Slab Rebar two point zero and Slab Rebar Plans. This guide demonstrates the installed two point zero settings interface. Select structural floors and Finish. Our practice floor is nine thousand seventy five by seven thousand millimeters, three hundred millimeters thick. Creation is blocked by a missing method in the installed add-in, so the following screens demonstrate settings and previews only.

Installed version and scope

2. Cover, spans, and anchors (0:28)​

Select the floor in the upper left list. Cover is in millimeters. Hat Factor sets the support reinforcement length as a fraction of span, such as L over four or L over five. Rounding controls rounded lengths, and Min Span filters short spans. Beam Anchor A and Slab Anchor B apply to support reinforcement. Bottom Anchor and Top Anchor separately control anchorage of the full bottom and top layers. Check the detected panel list before changing edge behavior.

Cover, spans, and anchors

3. Bottom layer example (0:57)​

For a bottom-only example, enable Bottom Layer Draw and disable Top Layer, Hat Reinforce, distribution bars, and spacers. Here bottom X is D twelve at two hundred millimeters and bottom Y is D ten at one hundred fifty. The third bottom field is hook length, not another spacing. Invert Layer reverses the stacking order of the directions. Preview Bottom shows the proposed layout; it does not create Rebar elements.

Bottom layer example

4. Top layer, hats, and spacers (1:23)​

Enable Top Layer Draw for a full top mesh. Here both directions are D twelve at two hundred. Hat Reinforce is a separate local top reinforcement group, with its own X and Y diameter and spacing. Top Dist Rebar adds distribution reinforcement for that arrangement. Spacer, Chair or C Hook uses its own diameter, two placement steps, and hook length. The example uses D ten at twelve hundred by twelve hundred with a two hundred millimeter hook.

Top layer, hats, and spacers

5. Panel overrides and full hats (1:49)​

Select a panel row before applying panel actions. Full Hat changes the panel to full support reinforcement coverage. Full Span Anchor and Pick Edge work on particular support edges; verify the highlighted edge and resulting preview. Merge Mode and Auto Merge combine eligible panels. Delete Panels removes panel definitions from this tool, not the structural floor. These controls need a model with meaningful panel boundaries to demonstrate their effect.

Panel overrides and full hats

6. Skip a layer or edge (2:25)​

Skip Top and Skip Bot operate on the selected panel rows. Pick Skip Edge operates on a chosen edge. Always compare the correct preview layer after applying an override. A preview visibility button only shows or hides the drawing in the tool; the Draw checkbox controls whether that reinforcement group is requested during creation. These are different decisions.

Skip a layer or edge

7. Review the information list (2:53)​

Slab Rebar Info List displays the configured reinforcement for the selected floors. It is a settings summary, not a report of bars already created. Select All and Unselect All control which rows receive a Quick Layout change. Use the language selector for the English interface. Horizontal scrolling reveals additional columns.

Review the information list

8. Apply Quick Layout selectively (3:13)​

Quick Layout has enabling checkboxes for top, bottom, additional top reinforcement, cover, hat distribution, and spacers. Check only the groups you intend to change. Set diameter and spacing independently for X and Y, plus hook or anchor options where available. Apply updates the selected floors settings. It is not the Create Rebar operation. Cancel leaves the quick changes unapplied.

Apply Quick Layout selectively

9. Creation blocker and practice file (3:38)​

Create Rebar was tested with the simple bottom-only case. The installed add-in reports a missing Rebar A P I shim Create From Curves method. No successful slab reinforcement output was verified. Changing spacing or cover will not repair a missing method. Keep the log for the add-in provider and use a compatible installation before completing the creation walkthrough. The supplied practice file contains the structural floor; no slab reinforcement result is claimed.

Creation blocker and practice file

Practice and safe repetition​

Version substitution: the installed ribbon exposes Slab Rebar 2.0, not the classic SlabRebarCmd in the usage ranking. This is a settings/preview guide. Create Rebar fails because the installed RebarApiShim.CreateFromCurves method is missing. No generated slab reinforcement is verified. The practice RVT is an input model with a 300 mm native floor at Level 1 and inherited fixture columns. Multi-panel merging and openings are not runtime verified.

Download the Revit 2027 practice package, extract the RVT and read README.txt. Save a separate copy before repeating. Use Ctrl+S to save the RVT; saving a tool template alone does not save model changes.

Revit 2027 and2024 package differences​

The installed 2026.10.23.2046 package for Revit 2027 still has a compatibility problem in its Create path. This guide has no confirmed v2 generation result on 2027; its2027 captures illustrate settings/preview. Special-slab module results are separate. Any independently verified2024 result is identified below.