Please contact Natural Concrete Products at 888-379-2210 and they will assist you in ordering the extra units you need for your project. Thank you!
Howdy Ella, You would need to drill holes to run electricity and use a diamond blade with circular saw to cut out stone for mailbox. Any handyman worth his salt should be able to do this. happy building, Coach Dave
The blocks are individual pieces that are 6" tall by 16" wide with decorative faces on them. The 42" column includes 28 of these units that will need to be stacked and glued together to build the column. Thank you!
The block units are actually 16" wide x 6" tall x 8" deep so it will make a 24"x24" column. The item description is inaccurate so thank you for pointing this out and we will get it changed. If you would like to extend the height of the columns please call the company directly to assist in a solution, 888-379-2210. Thank you!
The unit weights approximately 1650 lbs in all and there is a one year limited warranty on the craftsmanship of the concrete block units. Keep in mind these units are solid concrete blocks made in a process that gives very decorative and multi colored looks to them. Thank you!
Using Natural Concrete Products (NCP) standard corner block 24”x24” decorative columns can be constructed. Like NCP retaining walls, columns less than four feet high can be stacked without mortar, placed on 6” granular leveling pads, and do not require footings below frost. Generally, columns should have a minimum of one course of units (six inches) buried below grade. NCP columns do not require a setback. While NCP columns make excellent decorative landscape fixtures, they should not be used to support loads or exceed four feet in height without structural reinforcement designed by a qualified engineer. NCP recommends adhering each unit to the unit below with a SRW adhesive or like product. Do not use rigid adhesive or mortars for NCP columns on flexible granular pads, they will shift slightly causing rigid adhesives to fail. Columns can be built taller than four-feet-high but a taller column requires a structural footing below frost, and tied to concrete and steel reinforcement within the column. The center hole of the column provides a space in which steel-reinforced concrete can be placed. Column units may require temporary bracing during placement of concrete within the column until the concrete sets. A qualified professional Civil Engineer should provide a design for columns over four feet high. NCP recommends capping the decorative columns with our 26”x26” column cap. The column cap should be adhered to the column blocks following the guidelines above allowing a roughly 1” overhang around each side of the decorative column. Please dont hesitate to phone 888-379-2210 should you have any further questions. Thank you for your question.
We don't have any caps larger than 26"x26". A solution may be to use our 20"x20" caps and modify the sizes to fit. If you have questions or need assistance feel free to call Natural Concrete Products at 888-379-2210. Thank you!
It's not recommended drilling the top for a lamp to be added.
They are designed to be stacked on a compacted sub base so a poured foundation is not required. Thank you!
There is one column unit per pallet and each unit contains 28 two sided corner blocks and one column cap.