During the last decades, it has been brought to light that well organized logistics processes have contributed to competitive advantages for companies. Mio AB, a chain store warehouse and the second largest furniture company in Sweden, is operating in the middle of an expansion phase with growing revenue. As a consequence, larger volumes of goods are handled, space utilization become more scarce and the everyday operations within the internal logistics are affected. Therefore, the processes within the warehouse department were measured by performing a frequency study, registering how time was distributed between the different work tasks. In order to fully understand the processes, interviews were held with management and personnel. After analyzing previous research that could help guide to ease the impositions and analyzing the result of the frequency study, wastes were identified and new ways of working were suggested. The result firstly presents how to organize internal logistics operations in chain store warehouses to gain competitive advantage. Secondly, keeping in mind that firefighting stressed situations usually is not sustainable and only eases loads temporarily, long-term sustainability and ethics were addressed. Concluding that in order to optimize internal logistics operations in chain store warehouses and gain a long-term competitive advantage in a sustainable way, are achieved through standardizing work tasks, ensuring commitment of management and personnel and applying systems to serve the people and processes. Lastly it is advised to keep in mind the impact a company have on its surroundings and the importance of engaging in sustainable and ethically friendly operations, in order to achieve long-term competitive logistics.

Syfte: Att mäta och kartlägga produktionen i en industrialiserad bostadsfabrik samt mäta effektiviteten av dess badrumstillverkning. Den erhållna informationen används vidare som grund för effektiviseringsförslag presenterade för fabriksledningen. Lösningsförslagen är fördefinierade som ”Förbättring av befintlig produktion med hjälp av Lean”, ”Produktion med förtillverkat badrumsgolv” och ”Produktion med förtillverkade badrumsmoduler”. Metod: Mätmetoden som användes vid fabriken är en frekvensstudie (WSM), anpassad efter fallstudiens behov. Mätteknikern går med jämnt tidsintervall till arbetsstationer och antecknar vilken aktivitet som pågår i samma sekund. Efter flera tusen upprepningar skapas en genomsnittlig aktivitetsbild över fabrikens badrumsproduktion. Vidare bearbetas informationen för att erhålla visuella grafer där problem lättare kan identifieras. När problemen fastställts kan lösningsförslagen tas fram och presenteras.  Resultat: Genom att implementera förtillverkade badrumsgolv- eller modul går det att korta badrummens ledtid samt öka hela fabrikens produktionskapacitet. Vidare eliminerar dessa lösningsförslag även kompetenskrävande arbetsmoment, vilket underlättar personalersättning vid exempelvis sjukdom.  Implikationer: De i studien framkomna resultaten antyder att företag lidande av växtvärk har stora möjligheter att omstrukturera och avlasta sin produktion, på så vis att en högre produktionskapacitet erhålls. I detta fall kan produktionskapaciteten utökas på tre olika sätt med olika effektivitetsgrad. Fallstudien kan dock inte svara på exakt i vilken grad effektivitet kan uppnås utan dessa lösningsförslag bör simuleras för att kunna svara på detta. Potential för vidare forskning finns där fallstudien undersöker hur dessa lösningsförslag påverkar fabrikens helhet. Begränsningar: Storleken och komplexiteten i den beaktade fabriksstrukturen begränsade fallstudien från att analysera fabrikens helhet. Avgränsningar behövde göras vid badrumsproduktionen och produktionen av vissa element i badrummen behövde försummas för att författarna rimligen skulle kunna klara av arbetet. / Purpose: To measure and map out the production of an industrialized housing factory, in addition to measure the effectiveness of its bathroom production. The gathered information is then used as foundation for the efficiency improvement proposal presented for the board of directors. The efficiency improvement proposals are predefined as “Improvement of existing production using Lean”, “Production with prefabricated bathroom floors” and “Production with prefabricated bathroom modules”. Method: The measurement method used at the factory was a frequency study called Work Sampling Method (WSM), adjusted after the case study’s needs. The measurement technician goes with regular intervals to workstations and notes the activity happening in that same moment. After several thousand recurrences, an average activity image can be derived from the data depicting the bathroom production. Furthermore, the data is processed to obtain visual graphs where problems become more distinguishable. When the problems are identified, solutions and propositions can be developed and presented. Findings: By implementing prefabricated bathroom floors- or modules the factory can reduce its production time and thereby increase the factories production capacity. Furthermore, the propositions and solutions eliminate competence-required operations within the factory. Thereby facilitates the staff replacement.. Implications: The study shows that companies suffering from growing pain have considerable facilities to restructure and relieve its production, in such a way that a higher production capacity is obtained. The production capacity in this case can be expanded by three different methods with various degrees of efficiency. The case study can however not determine the exact degree of efficiency, to obtain these the propositions should be simulated. Further potential research should be done on how the case studies propositions affect the whole of the factory. Limitations: The size and complexity of the observed factory structure limited the case study from analyzing the whole of the factory. Delimitations had to be done at the bathroom production and the production of certain elements involved in the bathroom production had to be neglected.