Images of High Tunnel Doors

ohio state matt kleinhenzThe type, size, etc. of high tunnels doors are important to their users. Doors influence ease and safety of access, high tunnel structural integrity, and the ability to maintain the targeted set of conditions in the structure.Doors also vary in cost.The Extension Vegetable Physiology Lab (EVPL) at The OSU-OARDC in Wooster, OH operates nine high tunnels. Three measure 30 ft x 80 ft while the remaining six measure 21 ft x 48 ft. The large structures were installed in October 2008 by CVS Supply of Dundee, OH and contain 2-panel sliding doors the all metal and poly frame and track for which are on the insideof the tunnel. Four of the small structures were installed by the EVPL in March 2003 and contain two-panel, wood and poly swinging doors. The remaining two small tunnels were installed by CVS Supply in Oct-08; they contain metal-poly two-panel sliding doors the track of which is on the outsideof the tunnel.

Recently, participants in the hightunnels.org list-serve expressed an interest in seeing pictures of the doors on the EVPL high tunnels, in part to help identify which type of door may be best for their high tunnels. We hope the following images are useful to you. Please contact us if you would like additional information about these images or about other high tunnel-related issues.

The Extension Vegetable Physiology Lab. Matt Kleinhenz; ph. 330.263.3810, kleinhenz.1@osu.edu

2, 4 ft x 8 ft sliding panels
2, 4 ft x 8 ft sliding panels; weather stripping on frame
2, 4 ft x 8 ft sliding panels; easy to control opening size
each 4 ft x 8 ft slidingpanel is suspended from the track at two points
each 4 ft x 8 ft sliding panel is suspended from the track at two points; still “square” and sliding easily after 2 years
doors can be removed easily
access easier when snow in front of sliding door
simple latch installed after hanging
2, 4 ft x 8 ft slidingpanels removed from outside track
2, 4 ft x 8 ft swinging doors still good after heavy use but more tricky to manage and repair or replace
fewer, less stable ventilation options than sliding panels
the center brace is on the winter “stabilize” position, fixing the right side door in place
4x8-ft-swinging-door-7
less costly, reliable swinging doors with wintertime bracing on far end
the horizontal braces are in the winter “stabilize” position facing prevailing winds
stuff happens when winds are high, wood is old and doors are open
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