Stairs, Project #1246 Butterfly tread stair case – Project #1246 Photo 10 930 views FacebookXPinterestEmail Construction photo of stairs being installed in Healdsburg, CA. 1246 architectural metals butterfly tread staircase butterfly treads California floating treads Healdsburg mono stringer semi-floating treads Sonoma County stair case stair stringer stair treads steel stair case steel stair stringer Previous Window Shade – Project #1246 Photo 5 Next CorTen Steel Wall – Project #1246 Photo 1 In SeriesHorizontal Picket Railing – Project #1246 Photo 7Window Shade – Project #1246 Photo 6Stair Stringer – Project #1246 Photo 8Galvanized Trellis – Project #1246 Photo 9Window Shade – Project #1246 Photo 5CorTen Steel Wall – Project #1246 Photo 3Butterfly tread stair case – Project #1246 Photo 10CorTen Steel Wall – Project #1246 Photo 1CorTen Steel Wall – Project #1246 Photo 2Butterfly tread stair case – Project #1246 Photo 11Window Shade – Project #1246 Photo 4