The Hollow forest cinema

Advanced Template 243 parts, 243 pieces

A sunken home cinema for a forest: a lopsided cone of radial glulam beams to an oculus ring, with a ramp and an exit stair.

Open in editor

Opens as a new project on this device. Open it again and you get a second copy; your first one is never overwritten.

Designed by an AI assistant

An AI assistant built this frame with the Zaaglijst tools from the brief below. It validates with zero warnings, but nobody has checked it as a structure. See AI assistants to design your own.

The brief

Three radically different freestanding wooden home cinemas for a forest or garden. Acoustically sound, buildable in wood, and no traditional house shapes.

What you learn

• See how radial beams meet at an oculus ring.
• Study the stepped seating tiers and the covered ramp.
• Look at the fin diffuser and the exit stair.
• Use it as a starting point for a round roof.

Parts

243 parts, grouped by profile. Open the project to see every part.

Profile (mm)	Parts	Pieces	Total length (m)
45 x 195	70	70	84.9
240 x 1000	12	12	48
200 x 960	12	12	47.1
240 x 360	26	26	37.5
140 x 240	5	5	35.5
140 x 140	27	27	23.9
280 x 60	16	16	16
140 x 400	2	2	16
140 x 280	7	7	13.7
100 x 400	2	2	12.7
160 x 320	4	4	11.6
200 x 360	7	7	10.2
100 x 240	4	4	9.4
300 x 90	2	2	9.3
115 x 160	2	2	7
280 x 920	12	12	6.5
45 x 70	2	2	6.3
45 x 95	2	2	6.3
45 x 135	2	2	6.3
45 x 275	2	2	6.3
45 x 105	2	2	6.3
45 x 215	2	2	6.3
45 x 75	2	2	6.3
45 x 225	2	2	6.3
45 x 120	2	2	6.3
45 x 300	2	2	6.3
45 x 230	2	2	6.3
45 x 180	2	2	6.3
45 x 145	2	2	6.3
45 x 130	2	2	6.3
90 x 240	1	1	5.7
90 x 160	1	1	5.7
90 x 90	2	2	3.8
45 x 60	1	1	3.2

Related pages

• Queen post roof truss: A 7.2 m queen post truss at 40 degrees. Rafters and struts step into the tie beam and posts with heel step joints.
• Straight stair with housed stringers: A straight stair rising 2700 mm in 15 steps. Fourteen 40 mm treads sit in housings routed into two 60 × 280 stringers.
• Scarf-joined purlin and wall plate: Two beams lengthened into an 8.8 m purlin with a keyed scarf joint, a wall plate joined with a simple scarf, and a cross tie with a dovetail end.
• Saddle roof tiny house: A 10 by 6 m tiny house under a saddle roof of straight glulam rafters, with post-free glass corners and a loft under the high corner.
• Leaf Fold forest house: A forest house with a leaf-shaped roof on a midrib, a tree column and a screen of fins. 74 parts, 9.8 m³ of timber.
• Paalhuis on piles: A two-storey house on 18 piles after the old fishermen's houses, under a steep 55 degree roof with a glazed water gable.
• Gebinthuis fisherman's house: A low house on six anchor-beam bents with a long sea roof, a dormer band and a small net shed against the gable.
• Design briefs to copy: Real briefs that assistants turned into complete timber frames: a tiny house, a forest house, two fishermen's houses and a forest cinema.