Detail Library – New Details May 2026
House Extensions BLOG

This month we’re releasing a comprehensive set of furniture layout CAD blocks and space planning guides based on Building Regulations Approved Document Part M Volume 1.

Designing compliant residential spaces requires careful coordination of room dimensions, furniture arrangements, and circulation zones to meet accessibility standards. These blocks and example layouts provide a practical toolkit for testing compliance at the early design stages and demonstrating that your proposals meet the required standards.

Details included in this set:

  • SL50 – Building Regulations Part M4 – Bedroom Furniture as Described
  • SL51 – Building Regulations Part M4 – Bedroom Furniture Beds as Described
  • SL52 – Building Regulations Part M4 – Part M4(2) Bedroom Furniture Beds as Described
  • SL53 – Building Regulations Part M4 – Part M4(2) Example Primary Double Bedroom in 12m²
  • SL54 – Building Regulations Part M4 – Part M4(2) Example Primary Double Bedroom in 11.5m²
  • SL55 – Building Regulations Part M4 – Part M4(2) Example Secondary Double Bedroom in 11.5m²
  • SL56 – Building Regulations Part M4 – Part M4(2) Example Single Bedroom in 7.5m²
  • SL57 – Building Regulations Part M4 – Part M4(3) Bedroom Furniture Beds as Described
  • SL58 – Building Regulations Part M4 – Part M4(3) Example Primary Bedroom Layout in 13m²
  • SL59 – Building Regulations Part M4 – Part M4(3) Example Bedroom Layout in 8.5m²
  • SL60 – Building Regulations Part M4 – Dining Room Furniture as Described
  • SL61 – Building Regulations Part M4 – Part M4(2) Dining Room Tables as Described
  • SL62 – Building Regulations Part M4 – Part M4(2) Dining Room Tables as Described 2
  • SL63 – Building Regulations Part M4 – Part M4(2) Dining Room Tables as Described 3
  • SL64 – Building Regulations Part M4 – Living Room Furniture as Described 1
  • SL65 – Building Regulations Part M4 – Living Room Furniture as Described 2
  • SL66 – Building Regulations Part M4 – Example Parking Bays M4, M4(2) and M4(3)

We hope you find this latest set useful in your projects.

DL518 Dormer cheek party wall junction - section 2
PHT37 Passivhaus Twin stud timber frame wall to window head and cill 3d
PHT35 Passivhaus Twin stud timber frame floor to wall - insulated raft 3d
PHT35 Passivhaus Twin stud timber frame floor to wall - insulated raft 3d

Latest Article

Our technical guide this month explores the Part M Dwellings Design Guide in detail looking at the different requirements of Part M and how to ensure compliance. It’s a great companion to the CAD blocks.

If you are interested in joining our community, head over to the Detail Library to learn more about our platform and get yourself signed up.

The Detail Library provides hundreds of construction details for you to download and use adjust for your own projects. The details are available in 2D Revit, CAD dwg, and 3D SketchUp. You can start downloading straight away and build your own detail reference library. Not like other BIM libraries, the Detail Library contains fully resolved details rather than individual components.

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