viyadama wadi. Columns dekak athara dura (Span) eka wadi welawata timber walin karanna bari wenakota steal beams daana eka thamai saamanyayen karanne. Pinthure thiyenawa wage cantilever length eka wadi wenakotath steel beams daanawa. Ehema nathnam trusses (sinhalen kaappa) daanna one.
timber walata wada gaane loku wenasak thiyenawada machan ? 20ft withara 8'4' ekak 25000k withara wenawa..
20 ft diga 8"x 4" Timber beam ekak gana neda me ahanne?
Wahalaya asbestos/ZN-Al wenna aethi neda? Steel 65 x 65 x 8 - 75 x 75 x 10 dakwa wage range wala L ANGLE IRON walin wade karaganna puluwani. (Generally)
Roof ekama loku span walin yanawanam STEEL hondai. Adu members gaanak oona wenne. (Loku SPAN walata TIMBER hoyannath amaaruine.)
STEEL wada lesiy. DURABLE.
Need to get assistance of a Technical person.
8" x 4" wage loku members daanna yana ekanam costly. Hoyana ekath amarui.