Project/Walls, Doors & Windows

Walls, Doors & Windows

Wall layout with openings · lintels · schedules and quantities · glazing wind pressure · 3D model

Building and walls

Plan X (front/back) (m)Plan Z (left/right) (m)StoreysBeam depth (mm)Ground storey ht (m)Typical storey ht (m)

Wall type

Openings: ground storey

Front (z = 0)

Door typeDoorsWindow typeWindows

Back (z = Lz)

Door typeDoorsWindow typeWindows

Left (x = 0)

Door typeDoorsWindow typeWindows

Right (x = Lx)

Door typeDoorsWindow typeWindows

Openings: typical storeys

Front (z = 0)

Door typeDoorsWindow typeWindows

Back (z = Lz)

Door typeDoorsWindow typeWindows

Left (x = 0)

Door typeDoorsWindow typeWindows

Right (x = Lx)

Door typeDoorsWindow typeWindows

Lintels and wind

Bearing each end (mm)Masonry fk (design) (MPa)ConcreteLintel materialExposureWind vb,0 (m/s)Terrain

National Annex (partial factors)

Typical-storey wall load 10.79 kN/m average over the perimeter · ground 13.27 kN/m · 2 doors, 65 windows, 117 m² glazing

Wall dead loads on the perimeter beams (typical storey)

Face	Length	Wall ht	Gross	Openings	Net wall	Opening %	Line load
Front (z = 0)	18.0 m	2.70 m	48.6 m²	10.8 m²	37.8 m²	22%	10.53 kN/m
Back (z = Lz)	18.0 m	2.70 m	48.6 m²	10.8 m²	37.8 m²	22%	10.53 kN/m
Left (x = 0)	12.0 m	2.70 m	32.4 m²	5.4 m²	27.0 m²	17%	11.19 kN/m
Right (x = Lx)	12.0 m	2.70 m	32.4 m²	5.4 m²	27.0 m²	17%	11.19 kN/m

Enter 10.79 kN/m as the cladding line load in the Building designer (it applies the same value on all perimeter beams; clicking the link fills it in for you).

Door and window schedule

Mark	Description	Size	Ground	Typical	Total	Area
D1	Door, single timber	0.9 × 2.1 m	1	0	1	1.9 m²
D3	Door, double glazed leaf pair	1.8 × 2.1 m	1	0	1	3.8 m²
W2	Window 1.5 × 1.2	1.5 × 1.2 m	11	18	65	117.0 m²

Wall quantities (whole building)

Gross wall area		672 m²
Openings		123 m²
Net wall area		549 m²
Wall volume	215 mm thick	118 m³
Plaster (both faces)		1099 m²
Wall weight		274 t

Lintels over openingsRC, simply supported, arching masonry load

Opening	Clear span	Load model	w (kN/m)	Lintel	Bottom bars	Bearing
D1 (0.9 × 2.1)	0.9 m	full wall height above	2.93	215 × 150 mm	2Ø12	0.05 / 4.0 MPa	OK
D3 (1.8 × 2.1)	1.8 m	full wall height above	2.93	215 × 150 mm	2Ø12	0.10 / 4.0 MPa	OK
W2 (1.5 × 1.2)	1.5 m	full wall height above	2.93	215 × 150 mm	2Ø12	0.09 / 4.0 MPa	OK

Load: triangular arching load (√3/2 · span high) when the wall above is high enough, otherwise the full wall height. Beams or slabs bearing directly on the lintel must be added as extra line loads.

Glazing and cladding wind pressure at roof level (z = 13.2 m)EN 1991-1-4 simplified

Peak velocity pressure qp(z)		0.80 kN/m²
Design suction (zone A, cpi = +0.2)	cpe,A = -1.20	-1.12 kN/m²
Design pressure (zone D, cpi = −0.3)	cpe,D = 0.80	0.88 kN/m²

Use the larger magnitude to specify glass thickness and fixings with the glazing supplier. Small panels (< 10 m²) can see higher local coefficients than shown.

Scope: rectangular plan, openings evenly spaced along each face, typical storey repeated, wall weights from typical densities, RC lintels simply supported on masonry. Results are an aid only and must be verified by a qualified, licensed engineer before use. National Annex presets are recommended values and must be checked against the official documents.