Monthly Book Giveaway - March 2023
All crafts
View all crafts
Woodworking
7,604
projects
2,201
blogs
1,258
topics
Leatherworking
31
projects
24
blogs
15
topics
Metalworking
127
projects
55
blogs
30
topics
Home
Projects
Reviews
Blogs
Forums
Collections
Buy Tools
Shop on Craftisian Partner Stores
Members
Buy Tools
Shop on Craftisian Partner Stores
Sign in
Search
Join us today
Share your craft projects
Make new craft buddies
Ask craft questions
Blog your craft journey
re:
MailBox
Corelz125
I would go with the concrete mix. Just do it like a fence post dig the hole dump the bag and pour some water in. I only used spray foam for insulation around windows or to fill a gap. Never tried it to support something.