Building An Outdoor Fireplace. The concrete also needs steel reinforcement. Place mortar in three inch deep strips 1 inch from each other.
No matter which type of outdoor fireplace you are planning on building you will first need to prepare your building site. If you are building on a pre existing concrete pad or one much larger than your fireplace footprint be sure to form or cut expansion joints around the fireplace. Depending on local codes you may want to locate the fireplace at least 20 feet away from the house.
Leaf through home improvement magazines and you will often find somewhere a picture of a resplendent outside fireplace.
Leaf through home improvement magazines and you will often find somewhere a picture of a resplendent outside fireplace. However it will basically cost an average of 3 000 to build a fireplace. Unfinished contractor models and pre made kits typically cost from 1 500 to 9 000 while custom projects usually cost from 8 000 to 20 000 depending on your choice. The area underneath the fireplace should be strong.