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  鲜花(64 )   鸡蛋(0 ) | 
| 3.5ft比较稳妥.高DECK和低DECK对深度的要求是一样的,因为你的LOADING是一样的,冻土的上拔力frost  heave也一样. 另外不建议自己挖坑,自己挖的坑直径太大,灌了水泥之后多余部分要回填回去,而这部分的密实度不够,桩容易倾斜.最好上home depot租个机器,半天就搞定了.4 e: F6 }, G" _& d6 \' d- G6 T! \ 
 8 \. ?/ Q9 l7 M4 o* P超过3级台阶的DECK都要有扶手,2ft以上高的deck都需要申请permit.
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 Construction of a uncovered deck requires a development permit and building permit if they are:6 ]7 }( |& X1 j% Y
 More than 0.6 m (2 ft) above grade
 ( T2 k3 X) v' |Located in the rear or side yard
 - @' ?, b' g- Y# J; n# O$ }) r详细情况请见6 z+ F: f% R9 E6 t
 http://www.edmonton.ca/portal/se ... provements/Deck.htm
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