Precision Light Control. Compact Footprint.
The Sun & Steel 30ft Light Deprivation Greenhouse is a purpose-built structure for growers who need full photoperiod control in a tight footprint — spanning 30 feet wide and rising to a 16-foot peak with full 8-foot standing clearance across the entire interior. Both models include a full manual blackout cover system, light-tight end wall panels, roll-up ventilation sides that seal completely for dep cycles, a single 8’6″ sliding vehicle door, insect mesh ventilation, and 6-mil UV-stabilized poly film on a galvanized steel frame.
The Standard Model features 7 arches at 5 ft on centre — straightforward to operate, easy to set up, and built for growers running consistent light dep cycles without extreme snow loads. The Heavy Model steps up to 9 arches at 3.75 ft on centre, 2.5 mm arch walls, a three-tier W-support truss on every arch, and heavier pipe diameters throughout — the same steel spec as the heavy commercial tunnels, in the most compact light dep footprint we offer.
Engineered to spec
Every Sun & Steel structure ships as a complete, labelled kit on a heavy-duty galvanized frame. Here is exactly what goes into it.
Reference specifications shown for the 30′ Light Deprivation (Standard) build — framing scales proportionally across every length below.
Ground-anchor pipes driven directly into soil — no concrete required
Vertical wall sections running from anchor top to arch spring — one per arch leg
Main structural arch members forming the gothic curve — 2 pieces per arch, joined at peak
Junction sleeve connecting arch rib pair at peak — 2 per arch
Horizontal chord at 8 ft height tying each interior arch across the full span — 2 pcs per arch (5 interior arches)
45° diagonal braces from arch crown to bottom cord junction — 2 per interior arch
Primary return leg from bottom cord junction back to arch shoulder — 2 per interior arch
Secondary return — angled 14° outward from arch shoulder down to bottom cord — 2 per interior arch
Internal splice joining the two bottom cord halves at mid-span
Cross-bracing on both end bays of both sidewalls — resists lateral wind load at the gable ends
Longitudinal purlins running the full 30 ft — 2 mirrored shoulder runs, 2 mirrored mid runs, 1 ridge
Solid back wall infill framing — no door opening
Front end wall only — 8 ft 6 in wide sliding door opening
Aluminum channel with wiggle wire securing poly film along both sidewalls
6-mil UV-stabilized poly film — full gothic arch roof with 2 ft overlap on all edges
6-mil UV-stabilized poly film for the door end gable with 2 ft overlap on all edges
6-mil UV-stabilized poly film for the sealed back wall with 2 ft overlap on all edges
6-mil UV-stabilized poly film for both sidewalls with 2 ft overlap on all edges
Reference specifications shown for the 30′ Light Deprivation (Heavy) build — framing scales proportionally across every length below.
Ground-anchor pipes driven directly into soil — no concrete required
Vertical wall sections running from anchor top to arch spring — one per arch leg
Main structural arch members forming the gothic curve — 2 pieces per arch, joined at peak
Junction sleeve connecting arch rib pair at peak — 2 per arch
Horizontal chord at 8 ft height tying each interior arch across the full span — 2 pcs per arch (7 interior arches)
45° diagonal braces from arch crown to bottom cord junction — 2 per interior arch
Primary return leg from bottom cord junction back to arch shoulder — 2 per interior arch
Secondary return — angled 14° outward from arch shoulder down to bottom cord — 2 per interior arch
Internal splice joining the two bottom cord halves at mid-span
Cross-bracing on both end bays of both sidewalls — resists lateral wind load at the gable ends
Longitudinal purlins running the full 30 ft — 2 mirrored shoulder runs, 2 mirrored mid runs, 2 mirrored upper runs, 1 ridge
Solid back wall infill framing — no door opening
Front end wall only — 8 ft 6 in wide sliding door opening
Aluminum channel with wiggle wire securing poly film along both sidewalls
6-mil UV-stabilized poly film — full gothic arch roof with 2 ft overlap on all edges
