Item 1 - Floor

D.P.C.

100mm x 50mm pressure impregnated wallplate

Floor joists 200mm x 50mm @ 600mm centres

200mm glass fibre insulation supported on 12.5 insulation board on timber slats between joists

22mm water resistant chipboard tongue/grooved and joints glued

Item 2 - External Walls

Bottom rail (pre-marked) 150mm x 50mm

Top rail (pre-marked) 150mm x 50mm

Studs 150mm x 50mm @ 600mm centres

Lintels

Cladding, pressure impregnated redwood boards 150mm x 19mm approx

40mm x 15mm vertical timber straps

12.5mm impregnated insulation board

150mm glass fibre insulation

Polythene vapour barrier

12.5mm plasterboard

Item 3 - Roof

Concrete interlocking roof tiles

38mm x 50mm tile battens

12mm x 30mm counter battens

Underfelt

12mm plywood sarking

Preformed roof trusses for single storey houses

200mm x 50mm rafters for 1½ storey houses

200mm insulation

12mm panel board ceiling pre-finished white or 12.5mm plasterboard

Barge boards, redwood pressure impregnated

Fascia boards, redwood pressure impregnated

Soffit boards, whitewood tongue/grooved V Boarding

Item 4 - Windows

Severe exposure rated Nordan redpine, tilt and turn, preglazed with argon filled low  energy DG units

Redpine ingoes

Item 5 - Doors

Prehung in frames with ironmongery and  hardwood threshold fitted

External door - Teak veneer, insulated double glazed vision panel

Internal doors - solid pine paneled

Patio doors - Redpine preglazed with argon filled low energy DG units

Item 6 - Internal Walls

Top rail 40mm x 70mm

Bottom rail 40mm x 70mm

Studs 40mm x 70mm @ 600mm centres

12.5mm plasterboard

Item 7 - Finishes

Skirting, facings, ceiling cove, etc. all in redpine

Item 8 - Stairs

Treads, posts and rails all in redpine

Item 9 - Rainwater goods

All gutters, downpipes, etc. in uPVC

Item 10 - Balcony

All timber pressure impregnated redwood

98mm x 22mm boarding

48mm x 145mm joists

Support beams and posts

Balcony rails:-

150mm x 19mm boarding

75mm x 30mm framing

150mm x 50mm half round capping piece