Home bathroom and sanitaryJoin several worktops straight and corner

Join several worktops straight and corner

  • Check and measure
  • Connection of straight worktops
    • Drill holes for the wooden dowels
    • Glue wooden dowels
    • Assembly of the worktops
    • Screw connection with sheet metal connectors
    • Sealing the joint with sanitary silicone
  • Connection of worktops over corner
    • Connection without adapter

Worktops can be purchased in the desired length, but for very long models or corner laying, connecting multiple panels is usually necessary. With the appropriate tool, worktops can be easily connected to each other straight or corner.

In kitchens with special spatial conditions, a standard worktop is often not the right one and it has to be a special blank. You may also want to simply lay the board over the corner to use more space in your kitchen. Especially if a very long worktop is needed, the purchase fails in one piece because the plate is simply not to be transported into the house. Doors, staircases and corners are a real obstacle. To still be able to use a long work surface, several plate parts must be combined. What sounds complicated, can even be done by hand in practice, because worktops can be easily connected both on a straight line and on the edge. The stability does not suffer from a correct connection and you can use the complete surface of the worktop.

You need this material:

  • countertops
  • wood glue
  • sanitary silicone
  • wooden dowels
  • Drilling machine with various drill attachments
  • sheet metal connector
  • biscuit joiner
  • Wooden stands or workbench with underwood
  • ruler
  • Cordless Screwdriver
  • screwdriver

Check and measure

Before you start working, you should once again make a control measurement of the worktops, as well as a sighting of the tools. If the saw blades are correctly mounted, the base of the workbench is stable enough ">

Connection of straight worktops

When you bought your worktop, you cut it to a certain length and now you want to create a connection between two plates. Basically, this works in the same way with straight panels as with corner panels, but with the latter version there are different types of cuts. First place a worktop side on the workbench / wooden trestles and sweep the interfaces well with a broom. Dust is a hindrance here, so this step is important (picture of worktop on wooden block).

Tip: Have a vacuum cleaner ready with which you can immediately remove any small waste.

Drill holes for the wooden dowels

The first step in connecting two worktop parts is to make holes for the wooden dowels. Per ten centimeters of length of the plate edge, you should put a dowel. Measure exactly the distances with the ruler and mark the drilling positions with a pencil. The wooden dowels should disappear about halfway through the first hole. You must be aware that the holes on both edges of the plate must be exactly the same position. Make a note of the measurement results of the first plate and use exactly the same information for the second plate.

Choose a drill bit that has the thickness of your wooden dowels and start carefully drilling the first hole. Once you have reached the necessary depth, use the vacuum cleaner to clear the first hole from the dust. Continue working step by step until all required holes have been drilled. Before proceeding to step two, you should ensure that the resulting holes are completely free of dust.

Glue wooden dowels

In the second step, the wooden dowels are glued in the first half of the plate. Fill a drilled hole with wood glue and press the wooden dowel firmly in as deep as possible. Press firmly into the hole for at least five minutes until the glue starts to dry. Wood glue that swells from the hole must be removed immediately afterwards with a cloth before the drying process starts. If you have inserted all wooden dowels into the openings, you must wait at least four hours to allow the glue to dry (observe the manufacturer's instructions on the glue pack).

wood glue

Assembly of the worktops

Once the glue has dried and the wooden dowels are inserted, you can begin to consolidate the worktops. For this purpose, fill in the holes of the second worktop with wood glue and then bring the two cut edges together. The wooden dowels must slide smoothly into the holes and disappear completely. The gap between the two worktops must not be wider than two to four millimeters. Press both halves of the plate together for at least five minutes, then wait at least twelve hours for the glue to dry completely.

Check the fit of the wooden dowels again before finally turning the worktops on the workbench. At this time, the resulting gap may be slightly wider than the targeted two to four millimeters. This is corrected with the fastening and screwing with sheet metal connectors and is not a mistake of your previous work.

Screw connection with sheet metal connectors

The first step of the connection is successfully completed, now the stabilization takes place by means of sheet metal connectors. To do this, you need to turn the worktops over once so you can work the bottom. Even with the use of sheet metal connectors you should leave a distance of 10 cm. per connector. Mark exactly the places where the connectors are to be inserted into the wood and draw the size to be cut. Then use the groove cutter to mill the bulge for the sheet metal connectors and position.

sheet metal connector

Tip: Always cut two opposite bulges one after the other and then continue in the row.

If you have successfully positioned all metal connectors in the cutouts, these are fastened with screws. Here, the use of a cordless screwdriver is recommended, as the screws must be pulled very tight and this can be achieved with a screwdriver difficult. To make the job easier, you can first use the screwdriver to turn small joints into the worktop so that you can insert the screws there. This prevents the cordless screwdriver from slipping because the screws already have a firm hold. First mark in the pilot holes of the connecting plates exactly where the screw should be used.

Sealing the joint with sanitary silicone

If you have completely screwed the two worktops together, the large plate can be placed on the base cabinets or devices. Before you begin with the actual attachment, you must seal the resulting joint with silicone, so that no more dirt can get in and the result is visually appealing.

Tip: If the joint is too narrow, you can use a circular saw to create a joint about two to four millimeters thick.

Prepare the silicone bottle according to the manufacturer's instructions and then quickly draw a line on the joint between both worktops. Wipe off excess silicone with a Ceran field scraper or a knife and wait for a drying phase of twelve hours . Your worktops are now firmly connected and can be installed by you.

Remove silicone with the joint straightener

Connection of worktops over corner

If you want to connect two worktops corner-to-ceiling, an intermediate piece is required. So they actually connect three parts into one big whole. The work steps are essentially no different from those in the connection of two plates. The connector must be fixed to both panels with wooden plugs and the connection panels must be attached to both joints. A silicone seal is necessary for both joints. Otherwise the work steps are identical.

Connection without adapter

You can connect a worktop over corner even without an intermediate piece. In this case, the blank is L-shaped. The connection of the two worktops is then exactly to the scheme of a straight plate, only that the holes must be made on the side of a plate. Both the L-shaped connection and the connection with an intermediate piece require the same work steps as the connection of a straight worktop and promise a high degree of stability.

Tips for quick readers:

  • Keep the worktop dust-free before starting
  • Safe positioning on trestles or workbench
  • Precisely mark the drill holes for the wooden dowels
  • Pay attention to parallel hole arrangement
  • Select a suitable drill according to the dowel width
  • Pre-drill all holes one after the other
  • Fill glue into holes in one half of the plate
  • Press wooden dowel for at least five minutes
  • Only glue the counterpart after the drying time
  • Stabilization of plates with connecting plates
  • Tighten screws with a cordless screwdriver
  • Seal the joint with sanitary silicone
  • Remove excess silicone with a knife
  • Allow to dry for 12 hours before installation
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