Recent content by oldbuilder

16ft 4in × 11ft 7in is approximately 4.98m × 3.53m, giving a ceiling area of about 17.6m². A 6×3 sheet, approximately 1800 × 900mm, covers 1.62m². The bare area requires 11 sheets, while a 10% allowance takes the purchase estimate to 12. An 8×4 sheet, 2400 × 1200mm, covers 2.88m². The bare...

Your base area is 3m × 2m = 6m², so it helps to separate the sub-base and concrete calculations. If the chosen construction requires 100mm of compacted MOT Type 1, that is 0.60m³. Using 2.2 tonnes/m³ as a planning density gives about 1.32 tonnes before allowance, or about 1.39 tonnes with 5%...