920 cm
1.474 cm

The length can be shortened during installation.

310 cm (side), 430 cm (ridge)
Unobstructed floor space
900 x 1.454 cm ≈ 131 m²
Maximum snow load
1,40 kN/m² (EN 1991-1-3)
in combination with 0,48 kN/m² wind load
Maximum wind load
0,71 kN/m² (EN 1991-1-4) (10 Bft)
in combination with 0,85 kN/m² snow load
Roll-up door (included)
305 x 275 cm (H x W), clearance 295 cm, color RAL 9003 (signal white), including latch for padlock (not included). 0,45 mm steel, non-insulated, manual operation, polyester coating, model Janus 650.
Electric opener roll-up door (optional)
220V drive unit with LED lighting + 2x remote control + complete installation set (suitable for retrofitting)
Man door (included)
210 x 97 cm (H x W), color RAL 9003 (signal white), with stainless steel door knob with backplate and integrated lock (2 keys), aluminium door frame with polyester sandwich panel and vinyl closure.
Metal sheeting
High tensile steel S280GD, 0,5 mm (NEN-EN 10169).

MagiZinc® + Colorcoat® Polyester 25mμ, maintenance free. Innerside wall panels RAL 7035 (light grey).

For the outside you can choose between the colors RAL 3009, 6020, 7016, 7040, 8004, 8012, 9005 and 9010*

*Colors can slightly differ from reality.

1 panel per (approx.) 2,5 meter building length.

Transparant high impact polycarbonate panels. Dimensions 240 x 90 cm (H x W) per panel.

Steel structure
High tensile steel 400 Mpa, main profiles 50 x 75 x 2 mm, electrolytically galvanized, truss distance 1,22 meter.
Gutter system (optional)
Set of steel roof gutters and downspouts in the colors RAL 9022 (pearl light grey) or RAL 7016 (anthracite), width of gutter 125 mm, diameter of downspout 80 mm.
For a permanently installed building
Option 1. Concrete foundation
Concrete (strip) foundation to be prepared according to Kroftman drawings (included). Base rail of building is bolted with concrete anchors M12x180/020-035 (included). The concrete surface needs to be perfectly straight to obtain a watertight joint of the walls. (Tolerance plus or minus 5 mm)

Option 2. Prefab concrete slab elements
Construct a sandbed of 45 cm minimum (to the frost line) containing a spacious floor of prefab concrete panels (concrete slab elements) of 16 cm minimum. The soil profiles of the storage building need to be fastened with concrete anchors M12x180/020-035 (included).

This option is economical and fast.

For temporily or semi-permanently installed building
Option 3. Earth anchors (not included)*
Earth anchors 1.100 x 25 mm for anchoring on pavement, asphalt or hard gravel. The installation surface must be straight with a maximum slope of 2,5% limited to one direction. A curved surface requires equalization which leads to additional costs. Base rail holes of ∅30 mm are to be drilled on-site. (adequate holesaw is included).

Installation of your steel building with earth anchors saves time and money and is the perfect solution when only temporily constructions are allowed or needed.

*A storage building with industrial doors in a side wall cannot be assembled with earth anchors. This combination would lead to subsidence because of increased pressure on the surface on both sides of these industrial doors. This can be solved by applying a concrete footing on either side of the industrial door. This problem does not occur with industrial doors in the front or rear.

Average assembly time for DIY with 4 persons
4 days

Some parts need to be made to fit on-site.

Shipping weight and dimensions (L x W x H)
3.250 kg, 450 x 120 x 200 cm (2 pallets)
Construction drawings, structural calculations in accordance with EUROCODE and assembly manuals are included free of charge.
Metal sheeting and gutter system:
10 years descending warranty against rust perforation and discoloration

Steel structure:
10 years descending warranty against rust perforation

10 years descending warranty against breakage

10 years descending warranty against rust perforation and discoloration, 1 year mechanical warranty. Electric opener: 2 years or 5.000 cycles

– Electric opener
– Earth anchors
– Gutter system in the colors RAL 9022 (pearl light grey) or RAL 7016 (anthracite grey)
– Extra man doors (non-matching cylinders)
– Extra roll-up door in back wall
– Roll-up door in the side walls 245 x 275 cm (H x W)