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In term contractor work, the framework agreement is a building contract that commits the contractor to carry out predefined works on call for a fixed time period (normally one year). These works are commissioned in the form of single appointments according to the agreed terms of the framework contract.

Framework agreements can be concluded in the:

  • Bidding procedure according to §6 No.1 VOB/A
  • Bidding up and bidding down procedure according to §6 No.2 VOB/A

In the bidding procedure, the client has to provide type and scope of the work. The contractor puts the prices he demands for his services into the work specification or provides them differently in the offer.

In the bidding up and bidding down procedure (VOB/A § 6 No. 2), the prices that the client specified for the type and scope of work are submitted to bidders so that they can either bid up or bid down. This procedure should be adopted only in exceptional cases and only for regularly scheduled maintenance work whose scope must be kept to a minimum.

The function of the Standardleistungsbuch für das Bauwesen – Zeitvertragsarbeiten – (STLB-BauZ) is the support of recurring building maintenance work through standardized tendering texts that are specially customized for this scope. It supports the procedure according to §6 No. 2 VOB/A.

The standard work specifications of STLB-BauZ contain information about building type, building part, construction material and dimensions that are necessary for the production of the complete work. In general, no ancillary works according to VOB/C are described, with the exception of it having been settled differently in the standard specifications.
The job title “delivery and installation” is not mentioned separately in the work item specifications. Since the VOB is generally to be agreed on in fixed-term contracts, this job title is always agreed on according to VOB/C DIN 18299.
The respective attachment material as for example glue, screws and anchors are part of the work scope, if the work item specification demands as an exception the job title “install only” or “lay only”.

These regulations are described in the standard work specification 000.01 and are valid for all 28 work categories.
According to this, 1 m3 of not contaminated wastefrom the scope of the client is part of the unit prices. In the case of more than this amount of not contaminated waste, the following is part of the unit prices:
Load and transport of the waste to be disposed of from the expansion site to the storage place on the building site or the property named by the client (OWN) as well as the storage and sorting according to statements of the OWN.
Further transport of the waste as well as its disposal is not part of the unit prices. Costs are to be agreed on and to be paid separately.
Disposal of contaminated waste is generally not part of the unit prices.

The special feature of STLB-BauZ is the specification of unit prices (UP) as the basis of the bidding up and bidding down procedure according to § 6 No. 2 VOB/A.
Cost factors have been taken into account in the calculation of unit prices including additional charges and discounts: labor costs, material costs, equipment costs, additional costs.
Unit prices are developed in cooperation with the professional associations representing GAEB-AG 7. They are mandated exclusively to the bidding up and bidding down procedure and may not – not even for comparison – be used for different purposes, e.g as reference prices. Prices do not contain sales taxes.

STLB-BauZ is available as a book and on data carrier.

It is required that these programs have a XML interface that is able to communicate with STLB-BauZ XML. Processing programs for STLB-BauZ are available at building software companies. The program should support the prerequisites of the procurement manual (VHB).