How much does type 1 compact down?

What should I expect? I'm doing a DIY project and need to know so I can order materials for the job

Asked by carole on 2nd Apr 2026
Expert Trade Answers
"Around an inch so for 100mm finished stone you want 120-130mm before you compact."
Answered on 2nd Apr 2026 - Member since Mar 2026 - report
"150mm you want 50mm any 100mm you 30mm then compact and if you think you need more which you will be able to see ,then just add more."
Answered on 2nd Apr 2026 - Member since Mar 2024 - report
""Around an inch so for 100mm finished stone you want 120-130mm before you compact.""
Answered on 2nd Apr 2026 - Member since Oct 2025 - report
"When ordering type 1 you normally take the m2 and times it by 2.2, this will then give you the tonnage of type 1 roughly required"
Answered on 22nd Apr 2026 - Member since Apr 2026 - report
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