1-Click UK Depth Presets:
Self-Levelling Compound & Primer Inputs
mm
1mm Skim
5mm Standard
15mm Deep
30mm Max
20kg Compound Bags Needed
8
× 20kg Bags
Exact dry compound weight: 144.6 kg
Floor Area
16.2 m²
Clean Mixing Water
32.0 L
~4.0L per bag
SBR / Acrylic Primer
3.3 L
Buy 5L Jerrycan
Perimeter Foam Strip
16.2 m
Expansion Edge
Concrete / Screed Priming Spec:
Apply 1st coat of SBR or Acrylic Primer diluted 3:1 with water to seal dust, followed by a 2nd coat diluted 1:1 once tacky. Do not use PVA on floors!
Est. Material Cost (Compound + 5L Primer)
8 bags @ £16.50 + £22.00 SBR Primer
£154.00
Select UK Masonry Project Preset:
UK Brickwork, Blockwork & Mortar Specs
UK Metric: 215×102.5×65mm
Brick BBQ Refractory Firebrick Inner Lining
Total UK Bricks Needed
476
Bricks
~16 courses high (at 75mm gauge)
Net Wall Area
7.2 m²
25kg Cement Bags
5 Bags
OPC / Mastercrete
Building Sand Needed
18 × 25kg
or 0.53 × 850kg Bulk Bag
100mm DPC Roll Required:
6.6 m
100mm Concrete Blocks (440×215mm):
80 Blocks + 20 Wall Ties
Refractory Firebricks + Fire Cement:
32 Firebricks + 2 × 2kg Tubs
Est. Masonry & Mortar Cost
Bricks + Cement + Building Sand
£564.95
UK Plasterboard, Jointing Tape & Skim Inputs
12.5mm / 9.5mm Gyproc Specs
UK Dryliner Pro Tip: Preventing Hairline Ceiling & Wall Joint Cracks
When taping & jointing without a full 2mm skim coat, always bed pre-creased Paper Joint Tape into wet bedding compound rather than self-adhesive fibreglass mesh tape. Paper tape has 3× higher tensile cross-strength against timber joist shrinkage and seasonal thermal movement.
Plasterboard Sheets Needed
11
Sheets
Includes 10% cutting & offcut allowance
Surface Area
28.0 m²
Jointing Compound
2 × 10kg
Easy-Sand Tubs
Joint Tape / Scrim
42 m
1 × 75m/90m Roll
Drywall Fixings
440 Screws
1 × Box of 1,000
Est. Boards, Finish & Fixings Cost
UK Trade Average Pricing
£184.50
Sub-Base, Concrete Base & Bulk Aggregate Inputs
850kg Jumbo vs 25kg Maxi Bags
850kg Bulk Jumbo Bags
6
× 850kg Bulk Bags
Total weight required: 5.04 Metric Tonnes
Excavation Vol
2.00 m³
Or 25kg Maxi Bags
202 Bags
Bulk bags save ~45%
Geotextile Membrane
23.0 m²
Includes 15% overlap
Concrete Slab 5:1 Mix Breakdown:
Requires 5 × 850kg Bulk Ballast Bags + 29 × 25kg OPC Cement Bags.
Est. Bulk Aggregate & Membrane Cost
Based on £72 / 850kg Jumbo Bag delivered
£456.00
Essential Trade Tools for This Job