4" Hardwood Mason's Line Blocks (Pair)
4" Hardwood Mason's Line Blocks (Pair)Shipping & returns
- Ships from Olathe, Kansas by UPS, usually within 1–2 business days.
- Rates are quoted live at checkout for your ZIP code.
- Items with a pallet option ship free on the pallet size. For large orders of other items, contact us.
- We deliver to UPS addresses in the continental US.
- Returns or a damaged order? See our Return & Refund Policy.
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Perfectly Straight Courses for Every Project
Laying perfectly straight courses is the foundation of any quality masonry work, from everyday block laying to meticulous historic brick restoration. Keep your lines perfectly even and true with these reliable 4" Hardwood Mason's Line Blocks. Designed to grip the wall tightly on outside corners, these blocks secure your knotted mason's line firmly in place, ensuring your wall stays plumb and level. Simply retighten the line as you move up each new course for continuous, reliable accuracy.
Durable Hardwood and Customizable Design
Crafted from tough, high-quality hardwood, these line blocks are built to withstand the rigorous daily demands of the jobsite without slipping or failing under tension. Sold as a convenient pair, they can even be personalized, ensuring your gear stays easily identifiable and never walks off a busy jobsite. For the absolute best results, pair these blocks with premium W. Rose™ or Kraft Tool Mason's Line.
Key Features & Benefits:
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Precision Alignment: Essential for creating a perfectly even, straight line for brick and block courses.
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Secure Corner Grip: Engineered to grip outside corners tightly without slipping during use.
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Durable Construction: Crafted from high-quality hardwood to endure heavy daily masonry work.
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Easy Adjustments: Designed for quick line retightening as you lay down each new course.
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Customizable: Can be personalized so your tools are always easy to identify.
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Perfect Pairing: Recommended for use with W. Rose™ or Kraft Tool Mason's Line for optimal tension and results.
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Complete Set: Conveniently packaged and sold as a ready-to-use pair.
Let customers speak for us
Came out beautiful and better than I had hoped
Shipped quickly. Arrived quickly. It mixed easily and adhered to my spalling bricks. So far so good.
The perfect mortar for 126 year old bricks (granite boulder and brick foundation built in 1900). Very happy with the mortar and clear instructions. Thank you ProMason!
Worked perfectly. Stain changed color of existing brick to the tone I was expecting giving it new life and blends with other new finishes.
I haven't had a chance to mix and use the mortar yet. However, the customer service is great. They immediately sent a replacement package of colorant since the original had leaked.
Our project turned out wonderful! What an amazing difference. It completely changed the look of the house!!
Easier to apply than I anticipated.
My first time staining brick and I was nervous on how it might turn out because I was going from dark brown tone bricks to gray tone (before and after photo submitted)Blended my own color combo and It looks amazing.
The stain covers well and a quart did a good amount of surface area. The perfect shade was achieved by mixing 2 colors. It looks great and is a nice brick border update!
The masonry sealer worked great. It was easy to apply and dried perfectly.
So far, so good. It will take time.
I just tried the mortar out. Need to learn a little more about using it as what I applies turned white. Yes it was sunny and hot. I tried keeping it spritzed and ended up shading the work with tarps, but too late. I’ll try again next week since I see a cloudy day in the forecast. Marie
We took down the Wood pan line in our old home. Built in 1880. All the room is red brick. Except for this one spot that it looks like they ran out. Using pro Mason stains, I was able to make coordinate better with the rest of the room. Very happy with the results! It would have been impossible to achieve without being able to dilute and combine the stains to make multiple colors to match the variants in the original bricks.
Working out great so far
This was awesome. It mixed very well, and even though its still curing, it is very hard now. It was also fun to mix up a mortar by hand the same way they used to do back in the day.
I had my steps repointed but they were way to light and slot of cement left on the brick. These stains worked amazing. Darkened the mortar and made the bricks look new!! Love this product! I used dark buff for the mortar and mixed burgundy and dark red for my brick.