When I negotiated to have my 30 x 36 pole building put up last February, I was quoted $24,000. Steel roof, steel siding, one 42" commercial door opening, one 10' x 9' overhead door opening. I immediately put $8000.00 down payment and contractor bought materials. Borough would not approve my Amish contractor's drawings, so I had to dig out my drafting equipment and do some code checking to make acceptable plans to get approved. In the interim, maybe a month and a half, contractor got busy and covid shutdown started. Building went up in June/July. Talked to him recently and was told building would have cost me $36,000 at current pricing. I sheeted out some of the interior with 1/2" CDX, in the fall, paid around $28.00/ sheet...current box store price is $43.00, actually bought from local lumber yard/mill for $36.00. Peruvian sanded ply, most beautiful CDX I've ever seen, no voids at all. I 've been selling commercial steel entrances for 40 years. The 42"x 84" door and frame I bought for my building would have normally cost me in the $650- $750 range...$1100.00 current price.