Foundations

795 topics in this forum

1. RC slab and waste drainage

   By LSB, September 20, 2025
   • 2 replies
   • 898 views
   • 
   • torre
   • September 20, 2025

2. Shutter Foundations at Boundary ?

   By Spinny, September 17, 2025
   • 2 replies
   • 928 views
   • 
   • Spinny
   • September 17, 2025

3. Step in foundations, flatness of bottom of foundation, sleeving

   By Stu84, September 9, 2025
   • 2 replies
   • 1.2k views
   • 
   • Stu84
   • September 12, 2025

4. Can I use this to level ground under workshop slab

   By Owain1602, September 11, 2025
   • 1 reply
   • 1.1k views
   • 
   • Mike
   • September 11, 2025

5. Running underground drainage through below dpc wall

   By Sunil237, September 8, 2025
   • 3 replies
   • 997 views
   • 
   • Sunil237
   • September 9, 2025

6. Insulated Raft - How much better?

   By dsaunders, July 18, 2025
   • 12 replies
   • 1.7k views
   • 
   • Rosslyn
   • September 4, 2025

7. Foundations for garden retaining wall

   By paul1966, August 31, 2025
   • 1 reply
   • 997 views
   • 
   • cwr
   • September 1, 2025

8. Raft foundation expansion/movement joint

   By Selexus, August 5, 2025
   • 17 replies
   • 2k views
   • 
   • -rick-
   • August 13, 2025

9. Pile Foundation Cost

   By Saul, June 6, 2021
   • 19 replies
   • 18.5k views
   • 
   • Lincolnshire Ian
   • August 4, 2025

10. Rod System

    By MortarThePoint, July 30, 2025
    • 5 replies
    • 1.3k views
    • 
    • MortarThePoint
    • July 31, 2025

11. 7x4 garden room 1 2

    By Jadhacha, July 28, 2025
    • 26 replies
    • 2.1k views
    • 
    • saveasteading
    • July 30, 2025

12. Soil pipe penetrations through slab - which way up?

    By Dunc, April 15, 2025
    • 13 replies
    • 2k views
    • 
    • saveasteading
    • July 21, 2025

13. Piling Foundations

    By dsaunders, June 8, 2020
    • 3 replies
    • 3.9k views
    • 
    • dsaunders
    • July 18, 2025

14. Insulated rafts 1 2

    By Gus Potter, February 12, 2025
    • 26 replies
    • 3.4k views
    • 
    • Dave Jones
    • July 11, 2025

15. Soil sample Atterberg test

    By Buildbuild, June 21, 2025   

    • atterberg
    • soil test
    • (and 1 more)

      Tagged with:

      • atterberg
      • soil test
      • trees
    • 2 replies
    • 1.1k views
    • 
    • saveasteading
    • June 22, 2025

16. What type of insulation to minimise thermal bridging in this design?

    By Great_scot_selfbuild, June 14, 2025
    • 9 replies
    • 1.4k views
    • 
    • Kelvin
    • June 16, 2025

17. Progress update on my foundation

    By zzPaulzz, May 28, 2025
    • 14 replies
    • 2.2k views
    • 
    • zzPaulzz
    • June 6, 2025

18. Foundations - DPM / Flood zone thoughts?

    By boxrick, June 2, 2025
    • 3 replies
    • 974 views
    • 
    • boxrick
    • June 2, 2025

19. Log Cabin Foundations - Concrete Piers

    By iSelfBuild, July 16, 2019
    • 10 replies
    • 12.8k views
    • 
    • Space Race
    • May 31, 2025

20. Adding to existing garage slab

    By crispy, January 30, 2025
    • 1 reply
    • 1.4k views
    • 
    • crispy
    • May 30, 2025

21. Thoughts on replacing existing timber legs with concrete blocks

    By Space Race, May 28, 2025
    • 0 replies
    • 859 views
    • 
    • Space Race
    • May 28, 2025

22. Foundation depth check

    By Timberframeguy, May 22, 2025
    • 8 replies
    • 1.8k views
    • 
    • G and J
    • May 27, 2025

23. Piling + Ground Beam Cost

    By Lincolnshire Ian, May 19, 2025
    • 11 replies
    • 1.6k views
    • 
    • saveasteading
    • May 21, 2025

24. Timber frame foundations

    By jntabbycat, January 22, 2019
    • 12 replies
    • 21.8k views
    • 
    • BenL
    • May 19, 2025

25. Foundation help

    By Dman, May 18, 2025
    • 4 replies
    • 1.2k views
    • 
    • ETC
    • May 18, 2025