Making our first greenhouse

20L x 20W x 2.5H(m), 8 frames, Air gap at least .25(m) using 25(mm) diameter GI pipe with 1 Welder + ad hoc support. Need to speed up so compost making/ soil building can be faster while typhoon season is on.  Adjustment on total quantity and braces per frame, 4 sets each (original design + adjusted) to minimize material without compromising sturdiness. Hope to see it standing by next week with adjustment on the overlap I guess and the "weather" permits.Thanks to you guys.